Oral
Laser-shock compression of nano-polycrystalline diamond | Authors: Kento Katagiri (OSAKA UNIV. - Graduate School of Engineering, Osaka University) ; Norimasa Ozaki (OSAKA UNIV. - Graduate School of Engineering, Osaka University, ILE - Institute of Laser Engineering, Osaka University) ; Norimasa Nishiyama (TOKYO TECH. - Laboratory for Materials and Structures, Tokyo Institute of Technology) ; Leora Dresselhaus-cooper (LLNL - Lawrence Livermore National Laboratory) ; Yuichi Inubushi (JASRI - Japan Synchrotron Radiation Research Institute) ; Takeshi Matsuoka (OTRI - Open and Transdisciplinary Research Initiatives, Osaka University) ; Kohei Miyanishi (ILE - Institute of Laser Engineering, Osaka University, JASRI - Japan Synchrotron Radiation Research Institute) ; Shintaro Morioka (OSAKA UNIV. - Graduate School of Engineering, Osaka University) ; Yusuke Seto (KOBE UNIV. - Graduate School of Science, Kobe University) ; Yoshinori Tange (JASRI - Japan Synchrotron Radiation Research Institute) ; Tetsuo Irifune (GRC - Geodynamics Research Center, Ehime University, ELSI - Earth-Life Science Institute, Tokyo Institute of Technology) ; Tadashi Togashi (JASRI - Japan Synchrotron Radiation Research Institute) ; Yuhei Umeda (OSAKA UNIV. - Graduate School of Engineering, Osaka University) ; Makina Yabashi (RIKEN - RIKEN SPring-8 Center, JASRI - Japan Synchrotron Radiation Research Institute) ; Toshinori Yabuuchi (RIKEN - RIKEN SPring-8 Center, JASRI - Japan Synchrotron Radiation Research Institute) ; Ryosuke Kodama (OSAKA UNIV. - Graduate School of Engineering, Osaka University, ILE - Institute of Laser Engineering, Osaka University) |
Abstract: Understanding the behavior of diamonds under extreme conditions of high-temperature and high-pressure is of broad scientific interest, particularly to those studying materials science, astrophysics, and inertial confinement fusion. The properties of shock-compressed diamond have been studied over a wide range of pressures and temperatures, but in most cases only velocity measurments were performed. Thus, directly observing the deformations of diamond crystalline structures under shock compression remain challenging. We will present the results of the in-situ X-ray diffraction study of laser shock compressed Nano-Polycrystalline Diamond (NPD). The X-ray Free Electron Laser (XFEL) of SACLA in Japan was used as the X-ray source for X-ray diffraction measurements.
This work was supported in part by JSPS KAKENHI (Grant Nos. 18H04368 and 16H02246). The part of work was also supported by Genesis Research Institute, Inc. (Konpon-ken, Toyota). This experiment was performed at the BL3 of SACLA, with approval of the Japan Synchrotron Radiation Research Institute (Proposal no. 2018B8069).
|
|